I just got my yardage pro 500 home and it works great. Only goes down to 18 yards but that has not been a big issue since my bow is good to 20 and if it won' t pick it up I know it is under 18. The scan mode is great it will continue to give readings as the target moves. or you can scan multiple targets the zip mode allows you to scan through trees at a distant target without the leaves messing it up. I have done alot of stepping it off after checking and it has always been right on the money. 243 or 247 yards to a deer size critter, I have got it to read trees out to 396 yards so far so should be good for muzzleloader season as well.